Recently, NASA discovered two super earths, both of which are from the same star system , about 100 light years away from the earth. One is 1.3 times the size of the earth and the other is 1.4 times the size of the earth.
discoverers named them LP 890-9b and LP 890-9c, the most favored of which is LP 890-9c, because it happens to be in the habitable zone of the stellar system. Scientists have initially found that it may exist With a thick atmosphere and liquid water, it is not ruled out that life or even civilization has appeared on this planet. Once the discovery of
was reported, it quickly attracted the attention and heated discussion of netizens. Since LP 890-9c revolves around an red dwarf star , the life cycle of the red dwarf itself is much longer than that of the sun. Therefore, Some netizens are worried that the level of alien civilizations there may be much higher than that of the Earth civilization on LP 890-9c, and they are afraid that if humans blindly send signals to it, they may cause trouble.
So, are there really aliens on LP 890-9c? Should we contact them?
According to the research results of NASA astronomers, the star system where LP 890-9c is located is at least 2.6 billion years earlier than the solar system. Therefore, if LP 890-9c is really a habitable planet, the life on it has gone through a long time The evolution does not rule out the existence of intelligent life that is more advanced than the earth's civilization.
For example, judging from the evolution of life on earth, human civilization has only been around for thousands of years, but on LP 890-9c, the intelligent life there may have appeared more than 2 billion years ago. What is the concept? In other words, when the earth was still a group of single-celled lives, there was "people" on LP 890-9c. Friends, do you feel creepy when you see this? It took only a few thousand years for humans to develop to this point. What would be the result if humans were given more than 2 billion years of development? The messenger believes that humans may have been "deified" in more than 2 billion years, and that level of civilization is something we cannot imagine and describe now.
So, if that is true, then there is no doubt that the civilization on LP 890-9c has already discovered the solar system and has even been to Earth. If this is true, in fact, it will be useless whether we will contact them or not, because there is Perhaps the entire evolutionary history of human beings has long been observed in secret by the civilization on LP 890-9c, which is also the most terrifying thing to think about.
So, how likely is the earth to be observed in darkness in alien civilizations? If alien civilizations come to Earth, will humans be safe?
In June last year, astronomers from the United States published a research result in the journal " Nature ". Relevant experts said: In the past 5,000 years, there have been at least hundreds of -type earth planets You can "see" the earth, that is, as long as the civilizations on these planets can receive and know how to analyze cosmic signals, they can peek into the world of human beings on Earth.
In addition, astronomers also mentioned that the nearest terrestrial planet is only 7.9 light years away, and to this day, it can still "see" us. This also means that if there are alien civilizations on it, they can witness the development history of human space exploration and already know that we have also discovered their parent star .
It can be seen from this that there is a possibility that the earth is being monitored by alien civilizations in secret, and even multiple alien civilizations are observing our every move in secret, and they may also receive the "self-introduction" issued by humans, which has long been I have a thorough understanding of us.
After all, since the 1970s, astronomers have been willing to send space signals to the universe, and continue to "introduce themselves" to possible alien civilizations in the universe in large quantities.
Although many scientists, including Hawking , have strongly opposed this, but optimistic astronomers still do their own things and blindly believe that aliens are friendly. They believe that after receiving the Earth signal, I will find ways to come to the earth and help human civilization achieve a qualitative leap.So, does this possibility really exist? Let’s continue to look at
If alien civilizations really come to Earth, will they help human civilization develop rapidly? Will humans really be safe?
For this reason, the messenger collected a large amount of information and found that in August this year, an article about "Aliens are good or bad" was published in the US " News Weekly ". The American astronomer Carl Sa According to the root , humans do not need to worry too much, and there is no possibility that "aliens will pose a threat to us".
Carl Sagan said that compared with the alien civilizations that can come to Earth, humans are obviously very backward civilizations, and they are simply disdainful to attack us.
In addition, scientists from our country Zhou Haizhong also said that the advanced civilizations in the universe will be very rational. They must be more sensible than human civilization and know how to cooperate with other civilizations in a friendly and peaceful manner. If we think They will invade the earth, which is completely "worrying about nothing".
and American astronomer George Smut also believe that aliens do not have any threat to humans. Even if they appear on Earth, they just want to simply explore the earth, rather than plunder the earth. resources, because the earth is "worthless" in their eyes.
From this we can see that the mainstream scientific community is still very optimistic about alien civilizations. Scientists generally believe that aliens will be "friendly" and that humans will always be safe.
However, some scientists used "Columbus' discovery of the American continent" to give an example, believing that if aliens discovered the earth, the day they arrived was the "end" of the earth's civilization.
So friends, do you believe that there are alien civilizations in the universe? If there are alien civilizations in the universe, are they friendly or evil? Welcome to leave a message in the comment area to discuss
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